Money transfer device keyboard terminal

Abstract From the Canadian patent

A double keyboarded entry terminal for use in entering money transactions between customer and vendor in conjunction with a central computer, banks, and credit card companies with physical and/or elec-, tronic security features which preclude access to secret coded entries by customer and vendor, one from the other and collectively, from third, party "visual eavesdroppers". Security features include physical screening as well as mechanical and electronic realignment of numeric key entry functions.